Chipper Change from small engine power to PTO for chipper shredder

[tree grower]

I have an MTD chipper shredder w/ 10 HP BS engine. Compression is too great for easy pull start, so would like to modify power input to PTO on my Ford 1210. Two main issues--BS motor is 3600 RPM, PTO is 400-540, and PTO turns opposite direction of BS motor. Ideally I need a 6:1 gear reduction (increase) box that also changes direction of rotation. Somebody out there must have tried this. Would like to hear from anyone with recommendations.

 

[oldballs]

I'm no mechanic, but what about installing a starter via DC or AC? It might be easier to do or even less expensive.
Cheers,
Mike

 

[tree grower]

The motor runs fine when I can get it started, so an electric start would be a good solution, but I haven't a clue of how to add a starter to an engine that currently has a pull cord.

 

[Dave M7040]

Makes no sense.

You will spend more $ in the gearbox conversion, unless you possess extraordinary machinist skills, than the chipper is worth.

Either buy a starter for the Briggs or a purpose built tractor powered chipper.

Anything powered by a 10 hp gas engine is a toy and the tractor will break it.

Dave M70470

 

[RBA50]

Starters are available for most BS engines. You will most likely need the model and serial number of the engine. It is probably a simple bolt on installation, but there are some engines without teeth on the flywheel, so you might need a new flywheel as well. I htink Northern Tool sells starters, and most any small engine repair shop can get them. An internet search will turn up plenty of choices.

 

[sea2summit]

Makes no sense.

You will spend more $ in the gearbox conversion, unless you possess extraordinary machinist skills, than the chipper is worth.

Either buy a starter for the Briggs or a purpose built tractor powered chipper.

Anything powered by a 10 hp gas engine is a toy and the tractor will break it.

Dave M70470

This^

 

[nyone]

The motor runs fine when I can get it started, so an electric start would be a good solution, but I haven't a clue of how to add a starter to an engine that currently has a pull cord.

You should price out a pto 3200rpm gear box.. i bet you will gain a clue on how to install electric start or just pull harder.

What kind of brush are you chipping with a 10hp chipper? Bushes

 

[oosik]

What Dave M7040 says - ++. Otherwise - you are following a path towards large headaches.

 

[tree grower]

I don't chip any serious woody material--I burn it after cutting out anything useful for firewood. I would use the shredder function more than the chipper to prepare material for my compost pile. I will certainly investigate the electric starter option, but the strongest advantage to a PTO powered unit is its ease of transport, and ability to regulate RPM. I agree that the unit is a toy and can be easily broken, so I need to be careful

 

[Ortimber]

I would also pass on the conversion to PTO. Fairly complicated and expensive, not to mention you would most likely destroy the chipper due to the tractor's torque.

 

[oldnslo]

Tree grower
Is the current system direct drive from the motor to the chipper? If yes would the existing bearings allow using belt drive vs gear box? Might be a little less costly and possibly belt slip would help reduce over torque to your chipper.

To add electric start with battery charging capabilities to your B&S motor would probably require adding charging system. These components if available could get expensive. Some items that might be required are: stator, voltage regulator/ rectifier, possibly even different flywheel if your existing one does not have the magnets for the stator.

If not having the battery charge is not a problem then the electric start might be an option. Look closely at your engine by the flywheel shroud. Does the shroud have a bump out area to accept a starter? Is there a mounting surface on the engine block for a starter in this area. Does the flywheel have the ring gear for a starter? If yes to these questions then for a couple hundred dollars you might be able to add 12 VDC starter option, if no the starter will probably not be an economic option.

 

[cdaigle430]

Maybe this will work?
Briggs and Stratton Electric Starter Kits - Jacks Small Engines

 

[oldnslo]

Tree grower,
Are you also spinning the chipper while trying to start the motor is is there some form of clutch between the engine and chipper? If no clutch the electric starter may not spin this over either.

 

[bigtiller]

I have an MTD chipper shredder w/ 10 HP BS engine. Compression is too great for easy pull start, so would like to modify power input to PTO on my Ford 1210. Two main issues--BS motor is 3600 RPM, PTO is 400-540, and PTO turns opposite direction of BS motor. Ideally I need a 6:1 gear reduction (increase) box that also changes direction of rotation. Somebody out there must have tried this. Would like to hear from anyone with recommendations.

I had this 5hp hard starting chipper/shredder. I took the pull-rope assembly off and chucked up a deep well socket onto a cordless drill and started the engine with it. Don't try it with an impact driver. Make sure to remove the socket and drill as the engine begins to fire or they could go flying.

 

[100 td]

I have an MTD chipper shredder w/ 10 HP BS engine. Compression is too great for easy pull start,

I haven't checked this engine, but I would expect it to have an automatic compression release for easier starting.

If no clutch the electric starter may not spin this over either.

I have a 13 hp Chonda driven belt drive chipper, and yes it takes some pull because there is no disconnect. However I would expect an electric would be capable of starting it. Perhaps something like this but you may need a ring gear kit
Starter Solenoid Kit For Briggs & Stratton 693551 Air Cooled 7-18 HP Engine | eBay
Just an example, you would need to check your model numbers, many kits available
Briggs and Stratton starter flywheel ring gear kit 392134, 399676, 696537 | eBay